111230113221 has 8 divisors (see below), whose sum is σ = 164785352960. Its totient is φ = 74153408796.

The previous prime is 111230113199. The next prime is 111230113259. The reversal of 111230113221 is 122311032111.

111230113221 is a `hidden beast` number, since 111 + 230 + 1 + 1 + 322 + 1 = 666.

It is not a de Polignac number, because 111230113221 - 2¹⁰ = 111230112197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111230113194 and 111230113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111230113271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059816885 + ... + 2059816938.

It is an arithmetic number, because the mean of its divisors is an integer number (20598169120).

Almost surely, 2^111230113221 is an apocalyptic number.

It is an amenable number.

111230113221 is a deficient number, since it is larger than the sum of its proper divisors (53555239739).

111230113221 is an equidigital number, since it uses as much as digits as its factorization.

111230113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119633832 (or 4119633826 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111230113221 its reverse (122311032111), we get a palindrome (233541145332).

The spelling of 111230113221 in words is "one hundred eleven billion, two hundred thirty million, one hundred thirteen thousand, two hundred twenty-one".